MT5501 to MT5515
- DMU-3
- Quantity built: 15 sets
- First year: 1961
- Power: 580 KW
- Manufacturer: Fiat
In 1960/61 Fiat built 15 three-car diesel trains for TCDD derived from the FS Aln668, 1400 type. Each set has two motor cars and a trailer in between them. Each motor car has two engines. Each engines is powering one axle through a hydro-mechanical transmission. The motor cars are very similar to the Aln668: they kept the same frame and the same under frame arrangements. The MT5500 body has the same width and is a little bit taller than the Aln668. It has the same door arrangement is the middle of body.
Main characteristics
| Axle notation | 1A-A1 + 2-2 + 1A-A1 |
| Overall Length (m) | 62,3 |
| Width (m) | 2,9 |
| Height (m) | 3,9 |
| Weight of power car (T) | 34.7 (36.9 in running order) |
| Weight of trailer (T) | 21.8 |
| Wheel diam (mm) | 930 |
| Max speed (km/h) | 90 |
| Total capacity | 199 seats (original capacity, may have been modified) |
| Power | 4 x 145 hp at 1500 rpm |
| Engines | 4 x Fiat diesel 203.0 S |
| Transmission | hydraulic up to 73 km/h, then direct (5th) mechanical gear |
Pictures
MT5500, near Izmir Basmane, 7 March 1977. Photo Robin Lush | 
MT5500 arriving into Camlik station, from Denizli, en route to Izmir. 10 September 2002. Photo JP Charrey |
MT5500 in double unit near Konya on a local work, Photo TCDD | 
MT5500 in Izmir / Hilal 1974, Photo: unknown, published in "Turkish Steam", 1976 |
 
MT5500, which is serving the Göller Express from Isparta is pulling into Basmane station, This unit is in a sorry state but it has already expanded its useful life of 35 years. These units also serve between Basmane-Denizli. Despite their lower power and higher age, they make the route Basmane-Denizli in approximately 30 mins less than DE18100 hauled trains. August 2001. Photo Gökçe Aydin. | |
Alsancak Shed MT5500. March 2018. Photo Orhan Berent. | |
  
A "strange" MT5500 train made of (from left to right) MT55071+MT5512C+MT5512. MT55071 has a heavy rebuilt front end which is now completely flat. MT5512 is a light rebuilt and only the windows are flat. pictures taken Selçuk in September 2001, by Altan Ataman. My own guess is MT55071 could be a rebuilt MT5507A making up for a not servicealbe MT5512A | |
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